protocols Flashcards
HTTP/S
used for client and server to and recieve requests and deliver HTML web pages.
secure adds on encryption and authentification
Hypertext Transfer Protocol/secure
TCP/IP
TCP provides error free transmision between routers
IP routes packets across WAN
Transmission Control Protocol / Internet Protocol
UDP
used to send short messages using datagrams where speed is more important than accuracy
user datagram protocol
conntection ideal for online gaming
FTP
used for sending files between computers, normally on WAN
SMTP
transfers outgoing mail between servers and from email clients to servers
simple mail transsfer protocol
POP
retrieves emails from a mail server and transfers them to your device, removing them from the server in the process
post office protocol
IMAP
keeps emails on the mail server maintaining syncronicity between devices
internet message access protocol
What is a network?
Two or more computers connected together that transmit data
What are protocols?
Sets of rules defining how two devices communicate with each other
Why are protocols standard?
Protocols are standard so devices from different manufacturers don’t have problems communicating
Describe the structure of the Internet
The Internet is a global network of interconnected networks
What is the function of the application layer during data transmission?
The Application Layer specifies what protocols need to be used to relate the application to what it’s being used for.
What is the role of the transport layer during data transmission?
Establishes an end-to-end connection between the source and recipient computers. It also splits up the data into packets.
What is the role of the network layer during data transmission?
Adds the source and destination IP address.
What does the application layer do when it receives data?
Presents data in the form it was sent